Bizarre Patents
Behavior Modification Wristwatch
A wristwatch including a watch band and a watch body having an octagon shaped perimeter and being red in color and having the word STOP thereon to resemble a stop sign.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7567621 | Capacity based rank prediction for MIMO design The performance of a Single Code Word (SCW) design with low complexity MMSE receiver & rank prediction is similar to the Multiple Code Word (MCW) design with successive interference cancellation (SIC). A method of rank prediction comprises calculating MIMO channel m... | 07/28/2009 |
| 7567622 | Constellation rearrangement for ARQ transmit diversity schemes An ARQ (re-) transmission method of transmitting data in a wireless communication system wherein data packets are transmitted from a transmitter to a receiver, using a first transmission and a second transmission based on a repeat request. The method comprises the s... | 07/28/2009 |
| 7564917 | Multicarrier receiver and method for generating common phase error estimates for use in systems that employ two or more transmit antennas with independent local oscillators Embodiments of system and method for generating common phase error (CPE) estimates in a multicarrier receiver are generally described herein. Other embodiments may be described and claimed. In some embodiments, the CPE estimates may be generated for each channel bet... | 07/21/2009 |
| 7564915 | Apparatus and method for coding/decoding pseudo orthogonal space-time block code in a mobile communication system using multiple input multiple output scheme An apparatus for coding a pseudo orthogonal space-time block code in a transmitter using 4 transmission antennas of first to fourth transmission antennas. Upon receiving information symbol streams x1x2x3x4 to be transmitte... | 07/21/2009 |
| 7564916 | Method for encoding a message using diagonally weighted space-time trellis code depending on bit feedback Disclosed is a method for encoding messages with space-time trellis codes(STTC) and transmitting the encoded messages in communication system provided with at least two transmit antennas and at least one receive antenna. The method comprising generating a codeword b... | 07/21/2009 |
| 7564914 | Method and system for frame formats for MIMO channel measurement exchange A method and system for frame formats for MIMO channel measurement exchange is provided. Aspects of a method for communicating information in a communication system may comprise transmitting data via a plurality of radio frequency (RF) channels utilizing a plurality... | 07/21/2009 |
| 7561633 | System and method for MIMO equalization for DSP transceivers A method to efficiently deal with FEXT crosstalk in wireline communication system via MIMO equalization is presented. A MIMO-DFE based receiver architecture is developed to demonstrate the advantage over the traditional receiver design. A MIMO structure for systems ... | 07/14/2009 |
| 7561632 | Beamforming techniques for MIMO communication systems Improved beamforming techniques are provided for use in MIMO (multiple-input, multiple-output) communication systems, including MIMO-OFDM systems. The techniques include: (1) determining beamforming (BF) weights using a smoothed singular value decomposition (SVD) of... | 07/14/2009 |
| 7561631 | Multiple streams using partial STBC with SDM within a wireless local area network A method of communicating data to M receiving antennas from N transmitting antennas, where M and N are integers, the method includes the steps of receiving M data signals from M receive antennas, applying the M data signals to a space/time decoder to produce M decod... | 07/14/2009 |
| 7558330 | Multiple stream co-phasing for multiple-input-multiple-output (MIMO) systems A system and method for transmitting multiple independent data streams from subsets of a plurality of radio antennas. The method includes determining by the receiver, an antenna partitioning, including relative phase rotations to be applied to each antenna, that res... | 07/07/2009 |
| 7558331 | Constellation rearrangement for transmit diversity schemes A method of transmitting data in a wireless communication system from a transmitter to a receiver, comprising the steps of modulating data at the transmitter using a first signal constellation pattern to obtain a first data symbol. The first data symbol is transmitt... | 07/07/2009 |
| 7555054 | Methods and systems for transmission of multiple modulated signals over wireless networks Receiver network for receiving a first filtered modulated transmitted signal in a first RF band and a second modulated transmitted signal in a second RF band and for providing received signals to one or more demodulators. A demodulator and baseband filter for demodu... | 06/30/2009 |
| 7555053 | Long training sequence for MIMO WLAN systems A method for configuring a multiple input multiple output (MIMO) wireless communication begins by generating a plurality of preambles for a plurality of transmit antennas. Each of the plurality of preambles includes a carrier detection sequence at a legacy transmit ... | 06/30/2009 |
| 7551680 | Wireless communication method and apparatus for forming, steering and selectively receiving a sufficient number of usable beam paths in both azimuth and elevation A wireless communication method of exploiting the radio frequency (RF) physical environment to establish a sufficient number of usable multiple paths of RF propagation for facilitating communications. The method is implemented in a wireless communication system incl... | 06/23/2009 |
| 7551681 | Digital wireless audio transmitter system employing time diversity A transmitter system that transfers digital data on a fixed frequency channel of a radio frequency band in the presence of interference from at least one FHSS interference source includes a time diversity generation circuit. The time diversity circuit compacts a dur... | 06/23/2009 |
| 7551682 | Method for improving the performance of a wireless network utilizing beamforming weighting vectors Techniques are provided for selecting one or more downlink beamforming vectors for a wireless channel to create beamformed signals between a first wireless communication device, e.g., a base transceiver station (BTS) and a second wireless communication device, e.g.,... | 06/23/2009 |
| 7548588 | Method of transmitting data using space time block codes To transmit data, a set of at least 2m n×n matrices that represent an extension of a fixed-point-free group is provided. To each of 2m of the matrices is allocated one of the binary numbers from 0 to 2m−1. The data are mapped into... | 06/16/2009 |
| 7548589 | Method and apparatus for generating weights for transmit diversity in wireless communication Techniques for generating weights that can provide good performance for transmit diversity are described. A receiver obtains symbols for a data transmission sent from multiple transmit antennas to at least one receive antenna. The receiver also derives channel estim... | 06/16/2009 |
| 7545874 | Apparatus for pre-scaling data packets with multiple signal gain coefficients in a SIMO/MISO transceiver for communication with a SISO transceiver Apparatus and method for use in packet data communication from a single-input-multiple-output/multiple-input-single-output (SIMO/MISO) transceiver to a single-input-single-output (SISO) transceiver. Coordinate rotation digital computation (CORDIC) circuitry is used ... | 06/09/2009 |
| 7545875 | System and method for space-time-frequency coding in a multi-antenna transmission system A method for space-time-frequency coding pieces of data includes receiving a stream of a plurality of pieces of data in a multi-antenna transmission system, where the data may comprise a stream of orthogonal frequency division multiple access (OFDMA) symbols, orthog... | 06/09/2009 |
| 7545876 | Method for link adaptation Systems and methods for optimizing transmission of a plurality of data streams on a multiple-input multiple-output channel are described. The systems and methods for optimizing reduce the multiple-input multiple-output channel for each transmission scheme to an equi... | 06/09/2009 |
| 7539260 | Detecting the number of transmit antennas in wireless communication systems To detect the number of transmit antennas, a fast Fourier transform operation is performed on the received samples of the transmitted long training symbols of a preamble. Next, each of the Fourier transformed results is multiplied with the reference frequency-domain... | 05/26/2009 |
| 7539264 | Apparatus and method for transmitting/receiving a pilot sequence in a mobile communication system using space-time trellis code A mobile communication system includes M transmission antennas, P encoders for receiving P information bit streams and encoding the received information bit streams with a space-time trellis code (STTC), and M modulators for modulating information bit streams output... | 05/26/2009 |
| 7539259 | OFDM channel estimation and tracking for multiple transmit antennas Multiple Transmit Multiple Receive Orthogonal Frequency Division Multiplexing (‘OFDM’) comprising generating bit streams and corresponding sets of N frequency domain carrier amplitudes ({tilde over (s)}(kN+j), 0≦j≦N−1) modulated as OFDM symbols subsequentl... | 05/26/2009 |
| 7539261 | Multi-layer coded modulation for non-ergodic block fading channels A multi-layer coded modulation technique is disclosed for a wireless communication system with non-ergodic channels, which is particularly advantageous for multiple-input multiple-output (MIMO) systems. ... | 05/26/2009 |
| 7539263 | Method for transmitting and receiving preamble sequences in an orthogonal frequency division multiplexing communication system using a multiple input multiple output scheme In an orthogonal frequency division multiplexing (OFDM) communication system using multiple transmit antennas, a first base sequence with a first length is segmented into a first number of second sequences to which different time offsets are applied. Subsequences of... | 05/26/2009 |
| 7539262 | Method and apparatus for performing chip level equalization using joint processing A method and apparatus for performing chip level equalization (CLE) using joint processing to enhance performance and system throughput using a transmitter having a plurality of transmit antennas and a receiver having a plurality of receive antennas. A channel respo... | 05/26/2009 |
| 7535969 | Frequency selective transmit signal weighting for multiple antenna communication systems A system and method for generating transmit weighting values for signal weighting that may be used in various transmitter and receiver structures is disclosed herein. The weighting values are determined as a function of frequency based upon a state of a communicatio... | 05/19/2009 |
| 7535971 | Method and apparatus for antenna diversity A receiver includes a plurality of antennas; a switching device coupled to the antennas for selecting one of the antennas to receive transmitted signals; a demodulator coupled to the switching device for demodulating the transmitted signals to generate demodulated s... | 05/19/2009 |
| 7535970 | Wireless communication apparatus and method for multiple transmit and receive antenna system using multiple codes Disclosed is a wireless communication apparatus and method for a multiple transmit and receive antenna system using multiple codes. In suggested detection algorithm, a successive interference cancellation (SIC) scheme is employed in both an antenna domain and a code... | 05/19/2009 |
| 7529310 | Apparatus and method for estimating a channel An apparatus for estimating a channel from a transmitting point to a receiving point in an environment, in which at least two transmitting points spaced apart from each other are present, the transmitting point having associated therewith a pilot sequence, wherein t... | 05/05/2009 |
| 7529311 | Cooperative MIMO in multicell wireless networks A method and system for cooperative multiple-input multiple output (MIMO) transmission operations in a multicell wireless network. Under the method, antenna elements from two or more base stations are used to from an augmented MIMO antenna array that is used to tran... | 05/05/2009 |
| 7526040 | Near-optimal low-complexity decoding of space-time codes for fixed wireless applications An improved multi-antenna receiver is realized for detecting signals transmitted by a multi-antenna transmitter by summing signals received at the plurality of receiver antennas after multiplying each by a respective constant. The summed signal is applied to a maxim... | 04/28/2009 |
| 7526038 | Communications system, method and device A communications system including a transmitting device having plural transmit antennas and a receiving device having plural receive antennas. When it is determined that an error has occurred in a first data transmission attempt in which data signals are transmitted... | 04/28/2009 |
| 7526037 | Reduced complexity detector for multiple-antenna systems A reduced-complexity maximum-likelihood detector is disclosed that provides a high degree of signal detection accuracy while maintaining high processing speeds. The detector processes the received symbols to obtain initial estimates of the transmitted symbols and th... | 04/28/2009 |
| 7526039 | Method for deciding signal detection order in mobile communication system Disclosed is a method for deciding a signal detection order in a mobile communication system that supports an adaptive modulation technology. The detection order that maximizes a channel, in which a product of the minimum symbol distance for each modulation rate and... | 04/28/2009 |
| 7522673 | Space-time coding using estimated channel information The invention is directed to techniques for space-time coding in a wireless communication system in which the transmitter makes use of multiple transmit antennas. The transmitter uses channel information estimated by a receiving device and returned to the transmitte... | 04/21/2009 |
| 7522674 | Linearly independent preambles for MIMO channel estimation with backward compatibility A device and a method of characterizing a communications channel. The method includes transmitting a first part of a packet preamble using two or more antennas and transmitting a second part of the packet preamble using the two or more antennas. Each antenna transmi... | 04/21/2009 |
| 7519126 | Space-time block-coding (STBC) with multiple streams in orhogonal frequency division mulitplexing (OFDM) for wireless local area networks (WLAN) and error metrics for soft decision with channel information A method of receiving data over N receiving antennas from M transmitting antennas, where M and N are integers, includes the steps of receiving N signals over the N receiving antennas, applying the N signals to a space/time decoder, determining noise powers for N cha... | 04/14/2009 |
| 7519127 | Wireless transmission device and wireless receiving device A wireless transmission device which communicates with a wireless reception device is provided with a transmission-signal-generating unit configured to generate, transmission signals having transmission rates arranged in order corresponding to an input order of data... | 04/14/2009 |
